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Colonia weather in September 2025
Expect 18°C daytime maximum temperatures in the shade with on average 7 hours of sunshine per day in Colonia in September. Check more long-term weather averages for Colonia in September before you book your next holiday to Uruguay in 2025/2026.
- 1818°C max day temperature
- 7 hours of sunshine per day
- 88 days with some rainfall
- 1010°C min night temperature
- 1212 hours of daylight per day
- 0No heat & humidity
- 7474 mm of monthly rainfall
- 66 (High) UV index
- 1515°C sea temperature
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Recommended for Uruguay
The September weather guide for Uruguay (Colonia) shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.
Metric (°C / mm) | Imperial (°F / inches)
How hot is it in Colonia in September?
Daytime temperatures usually reach 18°C in Colonia in September, falling to 10°C at night.
How sunny is it in Colonia in September?
There are normally 7 hours of bright sunshine each day in Colonia in September - that's 55% of daylight hours.
How warm is the sea around Colonia in September?
The average sea temperature around Colonia in September is 15°C.
Does it rain in Colonia in September?
There are usually 8 days with some rain in Colonia in September and the average monthly rainfall is 74mm.
Colonia September sunrise & sunset times
Browse the sunrise and sunset times for Colonia in September 2025. Select a month to view Colonia sunrise and sunset times for the next 12 months.
JanFebMarAprMayJunJulAugSepOctNovDec
Date | Sunrise times | Sunset times |
---|---|---|
Monday, 1st September 2025 | 07:10 | 18:33 |
Monday, 15th September 2025 | 06:50 | 18:43 |
Tuesday, 30th September 2025 | 06:29 | 18:54 |
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